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Finding the Fourth Proportional to 52,675.62, 72,689.67 and 28,797.66

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Solution

The fourth proportional to 52,675.62, 72,689.67 and 28,797.66 is: 39,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,675.62 : 72,689.67 = 28,797.66 : x
  2. Step 2: Convert to fraction form
    52,675.62/72,689.67 = 28,797.66/x
  3. Step 3: Cross multiply
    52,675.62x = 72,689.67 × 28,797.66
  4. Step 4: Simplify right side
    52,675.62x = 2,093,292,402.17
  5. Step 5: Solve for x
    x = 2,093,292,402.17/52,675.62
  6. Step 6: Final answer
    x = 39,739.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.